A963158NU Ideal Standard Thermostatic Cartridge
Send a photo of your item and we'll help confirm it.
Summary
Ideal Standard A963158NU Thermostatic Cartridge for Concealed Shower Valves
Ideal Standard A963158NU thermostatic cartridge for the older IDEALTHERM Junior and IDEALUX Junior concealed mixer valves listed below.
The cartridge regulates the hot and cold water mix to control the outlet temperature. It is the internal temperature-control component, rather than the separate on/off flow headworks or a complete shower valve.
Technical Details
| Part number | A963158NU |
|---|---|
| Manufacturer's alternative code format | A 963 158 NU |
| Nominal cartridge size | G 1/2 |
| Function | mixed-water temperature control |
| First-fix body reference for the listed valves | A 953 543 |
A963158NU and A 963 158 NU identify the same cartridge; the spacing is an alternative way of writing the part reference.
Confirmed Compatible Models
Ideal Standard IDEALTHERM Junior old version - March 1995 to February 1996
- A 5407 981 660 - Chrome
- A 5407 981 661 - chrom-edelmatt
- A 5407 981 662 - White
- A 5407 981 663 - Red (RAL 3003)
- A 5407 981 664 - edelmessing
- A 5407 981 665 - aranja
- A 5407 981 666 - chrom-edelmessing
- A 5407 981 667 - weiss-edelmessing
- A 5407 981 668 - Satin
Ideal Standard IDEALUX Junior old version - January 1992 to February 1995
- A 5407 978 840 - Chrome
- A 5407 978 841 - White
Before Ordering
Check the full valve reference and production period, not just the IDEALTHERM or IDEALUX name. Compare the original cartridge reference, body shape, control connection and fixing arrangement. The G 1/2 designation alone does not establish fitment.
A963158NU Installation
Isolate both hot and cold water supplies before removing the cartridge and follow the valve manufacturer's servicing instructions. After fitting, check for leaks and confirm correct temperature control before use.
Related Spares You May Need
- Ideal Standard A963069NU Seal Servicing Kit - for servicing the cartridge seals
- Ideal Standard A962589NU Temperature Control Nut - for the temperature-adjustment mechanism
- Ideal Standard A963074NU Temperature Control Extension - for the cartridge adjustment assembly
- Trevi Therm A962586AA Chrome Volume Control Flow Handle - for the chrome IDEALUX Junior A 5407 978 840
- Trevi Therm A962585NU Black Handle Cap - for the flow handle on the listed IDEALUX Junior valves
- TACSIL 3g WRAS Approved Silicone Grease - TAC86 - for lubricating cartridge O-rings and seals during installation
For the listed older Junior valves, the stop ring is not required when fitting the A962589NU temperature-control nut set.
Use our part identification service for help finding the right part.
Fast delivery
- UK delivery: £5.95 incl. VAT for this small packet item.
- For all in-stock spare parts the typical UK delivery timescale is 2-5 working days.
- If you need a part urgently then we can provide a next-day (delivered Mon-Fri) UK delivery service for all in-stock small parcels ordered before 3.00pm, Monday - Friday.
- Next day delivery is available to select at an additional charge during the checkout.
- Worldwide delivery available — see our delivery page for details.
Returns
- 14 days 'risk-free' returns.
- Start a return within 14 days of receiving your order by calling 0121 705 0866 or using our contact page.
- Full returns information is available in our terms and conditions.
Payment methods
We accept the following payment methods:
- Card payments: Visa, Mastercard, Maestro, Discover, JCB, Diners Club and EnRoute
- PayPal
- American Express: available via PayPal guest checkout only
- BACS bank transfer
- Cheque: dispatch takes place once payment has cleared
Security
We use industry-standard payment systems to help keep your payment information secure. Our website and payment processes are regularly checked to maintain PCI security standards.
- Secure SSL encryption
- Your personal and payment details are protected
- Regularly checked for PCI security standards
